As a noun mousie
is a mouse.
As an adjective mousier is
comparative of mousy.
mousier
English
Adjective
(head)
(mousy)
mousy
English
Alternative forms
* mousey
Adjective
(
er)
Resembling a mouse
Quiet, stealthy
Timid
A greyish brown colour.
- It's a god-awful small affair to the girl with the mousy hair (1971)